Apparatus for preventing trolley-wheels from leaving the feed-wire.



No. 703,786. Patented IuIyI, I902.

a. w. HAMMOND. APPARATUS FOR PREVENTING TROLLEY WHEELS FROM LEAVING THEFEED WIRE.

(Application fil ed Mar. 3, 1902.)

(N0 Model.)

- of said forward portions 5 and at some point UNITED STATES PATENT@FFICE.

GEORGE IV. HAMMOND, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALFTO SAMUEL S. WVIENER, OF PHILADELPHIA, PENNSYLVANIA.

APPARATUS FOR PREVENTING TROLLEY-WHEELS FROM LEAVlNG THE FEED-WIRE.

SPECIFICATION forming part of Letters Patent No. 703,786, dated July 1',1902.

'Application filed March'3, 1902.

T0 aZZ whom it may concern.-

Be it known that I, GEORGE W. HAMMOND, a citizen of the United States,residing in the city and county of Philadelphia,State of Pennsylvania,have invented new and useful Im provernents in Apparatus for- PreventingTrolley-Wheels from Leaving the Feed-Wire, of which the following is aspecification.

My invention relates to improvements in apparatus for preventingtrolley-wheels from leaving the feed-wire and it consists of meanswhereby the jaws that prevent said wheels leaving the feed-wire mayeasily pass across; wire or similar object in the path thereof.

It further consists of novel details of construction, all as will behereinafter set forth.

Figure 1 represents a perspective View of the apparatus. Fig. 2represents an end elevation of the apparatus. Fig. 3 represents a planview of the parts seen in Fig. 1. Fig. 4

represents a side elevation of certain of the parts seen in Fig. 1.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings, 1 designates the upper portion of atrolley-pole, which latter has journaled therein the trolley-wheel 2,which is in contact with the feed-wire 3, so as to convey electricityfrom the latter to a motor.

The wheel 2 is located between the members 4, which latter in thepresent instance are integral with the trolley-pole, it being noted thatthe forward portions 5 of said members 4' are inclined, as best seen inFigs. 1 and at, and the object of which is to elevate a cross-wire, &c.,6, which may lie in the path between the wire 3 and the lower extremityof the portion 5-, (see Fig. 4,) so as to lift said wire 6 and bringthe. same to the ,wheel 2,

which latter will then'pass under the wire 6 when the trolley-pole ismoving in the direction indicated by the arrow at in Fig. 1.

The direction-of movement of that portion of the wire 6 which comes incontact with the portions 5 of the members a is indicated by thearrow 1) in Fig. at and illustrates how said wire 6 is caused to passover the wheel 2 when the trolley-pole 1 is in motion.

The rear, portions 7 of the members 4 are Serial No, 96,355. (No model.)

and 3, for a purpose to be hereinafter described.

Journaled, as at 9, in -the upper portions of 5'5 thetrolley-pole 1 arethe collars 10, to each of which is pivoted, as at 11, the arms 12,which'latter are provided-with inwardly-projecting members 13, whoseinner ends 14 meet at a point above the trolley-wheel 2 and are normallyretained in contact with each other by springs 15, as best seen in Fig.2, it being noted that one of said springs is seen in Fig.

[1 and indicated by dotted lines in order not to .concealfrom view thecar 16, to which one of the arms 12 is pivoted. I

17 designates a cross-wire (see Figs. 1 and 4) located above the. Wire3, it being noted that the cross-wire 6 is'located below the wire 3. Theobject in locating one of said crosswires above and the other cross wirebelow the wire 3 is to illustrate the manner inwhich the trolley-wheel 2may be made to pass a cross-wire, 850., located either above or belowthe feed-wire" 3.

The operation is as follows: \Vhen the trolley-pole 1 is moving in thedirection indicated by the arrow at in Fig. 1 and the trolley-wheel 2 isbrought in contact with a cross-wire-for instance, the'wire ,17- -it isapparent that the 8'0 arms 12are caused'to turn on their pivots 9 andvmove in the direction indicated by the arrow c' in Fig.1 and caused tooccupy the position seenin full lines in Fig. 4., it being noted thatwhen the arms 12 are in said position their innervertical faces 18 (seeFig. 2) have been brought in contact with the flaring faces 1-9 of therear portions? of the members 4: and are thus caused to turn on theirpivots 11, whereby the inwardly-projecting clear the wire3 (seealso Fig.itand pass un- 5 der the cross-wire 17, after which thearms 12 arereturned totheir normal positions, as seen in Figs. 1 and 2, by thesprings 15, which latter yield when the arms 12 are acted upon The arms12 are reby the flaring faces 19.

turned from the inclined position (seen in Fig. 4) to their normal orvertical positions, as seen in Figs. 1 and 2, by the springs 20. Anysuitable meansfor instance,lugs 21 and 22may be employed to prevent saidsprings 20 from carrying the arms 12 beyond the desired point, it beingunderstood that the hubs of the arms 12 are each provided with a l'ug21,

which moves in unison with said hubs, and that the portions 5 of themembers 4 are each provided with a 'lug'2i, rigid with said portion 5and against which the lugs 20 abut when the arms 12 are in their normalpositions.

It Will be apparent that various changes may be made by those skilled inthe art which will come Within the spirit of my invention, and I do not,therefore, desire to be limited in everyinstance to the exactconstruction herein shown and described.

Having thus described my invention,.what I claim as new, and desire tosecure by Letters Patent, is-

1. In a device of the character named, a trolley-pole,forwardlyprojecting members attached thereto,rearwardly-projectin gmembers on said pole, collars journaled upon said pole, arms pivotallymounted upon said collars adapted to contact with saidrearwardlyprojecting members, inwardly projecting. members upon saidarms, and means for holding the latter in position with respect to eachother.

2. In a device of the character named, a trolley-pole,forwardly-projecting members attachedthereto,rearwardly-projectingmembers on said pole,vcollars j ournaledupon said pole,arms pivotally mounted upon said collars adaptedto-cont-act with said rearwardlyprojecting members, inwardly projectingmembers upon said arms, means for holding said inwardly-projectingmembers in j uxtaposition, and means for permitting said arms andmembers to have a yielding rotary movement.

3. In a device of the character named, a"

trolley-pole, forwardly projecting members attachedthereto,rearwardlysprojectin g mem- Ward portions and upwardly-flaringrear portions, collars journaled upon said pole, arms pivotally mountedupon said collars adapted to contact with said rearwardly-projectingmembers, inwardly-projecting members upon said arms, springs'for holdingsaid members in juxtaposition, and means for permitting said armsandmembers to rotate with respect to said trolley-poles.

attached thereto,rearWardly-proj ectin g members on said pole, collarsrotatably mounted I upon said pole, arms pivotally mounted upon saidcollars adapted to contact with said rearwardly projecting members,inwardly projecting members on said arms, and means for holding saidmembers in position relative to.

each other and to the pole.

5. In a device of the character named, a trolley-pole,forwardly-projecting members attached thereto,rearwardly-projectingmembers on said pole, and having inclined forbers on said pole andhaving inclined forv V 4. In a device of the character named, a

trolley-pole, forwardly projecting members

